Fibre optic active components and devices - Reliability standards - Part 3: Laser modules used for telecommunication (IEC 62572-3:2011); German version EN 62572-3:2012— 21 стр.
Optical amplifiers - Part 5-2: Qualification specifications - Reliability qualification for optical fibre amplifiers (IEC 61291-5-2:2017); German version EN 61291-5-2:2017— 23 стр.